Theben RME 8 T KNX 8-Way Switching or 4-Way Blind Actuator Extension Module (4930205)

Description

Introduction

The Theben RME 8 T KNX (Item no.: 4930205) is a high-performance MIX2 extension module designed for modern KNX building management systems. Functioning as either an 8-way switching actuator or a 4-way blind actuator, it allows engineers and system integrators to scale outputs effortlessly while optimizing distribution board space. This device is part of our KNX Actuators products range.

Engineered for connection to MIX2 base modules, this DIN rail unit enables expansions up to a maximum of 24 channels. It supports demanding lighting loads including LED, fluorescent, and incandescent lamps, while offering protection class II compliance and reliable screw terminal connections.

Key Features

• 8-way switching or 4-way blind control configuration
• MIX2 series extension module capability
• Standard DIN rail mounting with a 4-module width footprint
• NO contact rated for 16 A and 3 A operating currents
• 240 V AC voltage output switching capability
• Terminal screw electrical connections with dedicated KNX bus terminal
• Contact opening width of less than 3 mm

Benefits

• Dual-function design provides configuration flexibility as either an 8-channel switching actuator or a 4-channel blind actuator.
• Scalable system architecture allows seamless expansion up to 24 channels when combined with MIX2 base units.
• Robust load capability with high inrush current tolerance up to 800 A for 200 µs, preventing contact welding.
• Versatile lamp compatibility supporting modern LED retrofit lamps up to 600 W as well as conventional lighting loads.
• Safe and standardized installation complying with EN 60 669 protection class II requirements.

Technical Specifications

Specification	Value
Installation type	DIN rail
Protection class	II according to EN 60 669
Width	4 modules
Opening width	< 3 mm
Type of connection	Terminal screws | Bus connection: KNX bus terminal
Type	Extension module
Max. cable cross section	Solid wire: 0.5 mm² (Ø 0.8) to 6 mm² | Stranded wire with end sleeve: 0.5 mm² to 4 mm²
Number of channels	8
Type of contact	NO contact, 16 A, 3 A
Information Notice EU Data Act	PDF
Data sheet	PDF
Incandescent/halogen lamp load	2000 W
Fluorescent lamp load (conventional) parallel-corrected	1300 W (140 µF)
Fluorescent lamp load (conventional) not corrected	2000 VA
Fluorescent lamp load (electronic ballast)	1200 W
Energy saving lamps	300 W
LED lamp < 2 W	55 W
LED lamp 2-8 W	600 W
LED lamp > 8 W	600 W
Inrush current	max. 800 A / 200 µs
Voltage output	240 V AC

Applications

• Commercial lighting automation managing LED, fluorescent, and halogen circuit switching.
• Motorized shade and window blind management in office complexes, educational institutions, and residential installations.
• Distribution board output channel expansion for MIX2 KNX base setups requiring additional switching channels.

Installation Notes

• Mount directly onto standard 35 mm DIN rails in distribution enclosures with a width requirement of 4 modules.
• Connect load conductors using terminal screws accepting solid wire from 0.5 mm² (Ø 0.8) to 6 mm² or stranded wire with end sleeves from 0.5 mm² to 4 mm².
• Attach to the designated MIX2 base module for signal processing and bus integration via the standard KNX bus terminal.

Developer Resources

• Official Product Data Sheet (PDF)
• Information Notice EU Data Act (PDF)

FAQ

Can the Theben RME 8 T KNX be used independently without a base module?

No, the RME 8 T KNX is a MIX2 extension module designed to work in conjunction with a MIX2 base module to expand system output channels. Explore more theben automation devices for professional building automation projects.

What is the maximum number of channels achievable using MIX2 extensions?

By adding MIX2 extension modules to a MIX2 base module, system capacity can be expanded up to a maximum of 24 channels. For certificates and current technical files, refer to the official theben documentation.

What LED load capacities are supported by this module?

The module supports up to 55 W for LED lamps under 2 W, and up to 600 W for LED lamps rated between 2 W and 8 W or over 8 W.

What wire sizes can be connected to the terminal screws?

The terminals accept solid wires from 0.5 mm² to 6 mm² and stranded wires with end sleeves from 0.5 mm² to 4 mm².

What is the exact product model?

The order/model code for this page is 4930205. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The Theben RME 8 T KNX extension module (4930205) offers flexible and space-efficient channel expansion for professional KNX installations. Its high switching load thresholds and dual-purpose blind/switching functionality make it an essential module for scalable building control projects. Installers and system integrators can review our professional project support options.